623929746 has 64 divisors (see below), whose sum is σ = 1410379776. Its totient is φ = 182299200.

The previous prime is 623929723. The next prime is 623929793. The reversal of 623929746 is 647929326.

It is a junction number, because it is equal to n+sod(n) for n = 623929695 and 623929704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955156 + ... + 955808.

It is an arithmetic number, because the mean of its divisors is an integer number (22037184).

Almost surely, 2^623929746 is an apocalyptic number.

623929746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 623929746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705189888).

623929746 is an abundant number, since it is smaller than the sum of its proper divisors (786450030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623929746 is a wasteful number, since it uses less digits than its factorization.

623929746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its digits is 979776, while the sum is 48.

The square root of 623929746 is about 24978.5857485967. The cubic root of 623929746 is about 854.4996655459.

The spelling of 623929746 in words is "six hundred twenty-three million, nine hundred twenty-nine thousand, seven hundred forty-six".